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Betty Skipp
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Geology, geochemistry, and mineral resource potential of the Eighteenmile Wilderness study area p (ID-43-3), Lemhi County, Idaho
Betty Skipp · U.S. Dept. of the Interior, Geological Survey
Sayfa sayısı yok · 1984
Geochemistry / Mines and mineral resources
The Maudlow and Sedan Formations of the Upper Cretaceous Livingston Group on the west edge of the Crazy Mountains Basin, Montana
Betty Skipp · U.S. Govt. Print. Off.
68 sayfa · 1977
Geology / Stratigraphic Geology / Volcanic ash, tuff
Tournayellinae, calcareous Foraminifera, in Mississippian rocks of North America
Betty Skipp · Cushman Foundation for Foraminiferal Research
38 sayfa · 1966
Paleontology / Tournayellidae
Mineral resources of the Burnt Creek Wilderness Study Area, Custer County, Idaho
Betty Skipp · For sale by the Books and Open-File Reports Section, U.S. Geological Survey
13 sayfa · 1988
Mines and mineral resources
Upper Paleozoic carbonate bank in east-central Idaho--Snaky Canyon, Bluebird Mountain, and Arco Hills formations and their paleotectonic significance
Betty Skipp · U.S. Govt. Print. Off. : for sale by the Supt. of Docs.
78 sayfa · 1979
Formations (Geology) / Structural Geology / Stratigraphic Geology / Paleozoic